package cn.hjh.Service.aop;


import org.apache.log4j.Logger;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.AfterReturning;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;

import java.util.Arrays;

/**
 * 定义包含增强方法的javabean
 * 使用注解定义切面
 */
@Aspect
public class UserServiceLogger {

    private static final Logger log = Logger.getLogger(UserServiceLogger.class);
    //代表前置增强的方法

    @Pointcut("execution(* cn.hjh.Service.UserService.*(..))")
    public void pointcut(){}

    @Before("pointcut()")
    //@Before("execution(* cn.hjh.Service.UserService.*(..))")
    public void before(JoinPoint jp){
        log.info("调用" + jp.getTarget() + "的" + jp.getSignature().getName() + "方法。方法入参：" + Arrays.toString(jp.getArgs()));

    }

    //代表后置增强的方法
    @AfterReturning(pointcut = "pointcut()",returning = "returnValue")
    //@AfterReturning(pointcut = "execution(* cn.hjh.Service.UserService.*(..))",returning = "returnValue")
    public void afterReturning(JoinPoint jp,Object returnValue){
        log.info("调用" + jp.getTarget() + "的" + jp.getSignature().getName() + "方法。方法返回值：" + returnValue);
    }
}
